mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

usb-hub: add tracepoints

Browse Source 
Add tracepoints to the usb hub emulation.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-03-23 15:42:58 +01:00
parent f5bf14bf39
commit 529f8f9fa9
2 changed files with 51 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
hw/usb/dev-hub.c
View File

@ -22,11 +22,10 @@
* THE SOFTWARE.
*/
#include "qemu-common.h"
#include "trace.h"
#include "hw/usb.h"
#include "hw/usb/desc.h"
//#define DEBUG
#define NUM_PORTS 8
typedef struct USBHubPort {
@ -157,6 +156,7 @@ static void usb_hub_attach(USBPort *port1)
USBHubState *s = port1->opaque;
USBHubPort *port = &s->ports[port1->index];
trace_usb_hub_attach(s->dev.addr, port1->index + 1);
port->wPortStatus |= PORT_STAT_CONNECTION;
port->wPortChange |= PORT_STAT_C_CONNECTION;
if (port->port.dev->speed == USB_SPEED_LOW) {
@ -172,6 +172,7 @@ static void usb_hub_detach(USBPort *port1)
USBHubState *s = port1->opaque;
USBHubPort *port = &s->ports[port1->index];
trace_usb_hub_detach(s->dev.addr, port1->index + 1);
usb_wakeup(s->intr);
/* Let upstream know the device on this port is gone */
@ -247,6 +248,7 @@ static void usb_hub_handle_reset(USBDevice *dev)
USBHubPort *port;
int i;
trace_usb_hub_reset(s->dev.addr);
for (i = 0; i < NUM_PORTS; i++) {
port = s->ports + i;
port->wPortStatus = PORT_STAT_POWER;
@ -261,12 +263,39 @@ static void usb_hub_handle_reset(USBDevice *dev)
}
}
static const char *feature_name(int feature)
{
static const char *name[] = {
[PORT_CONNECTION] = "connection",
[PORT_ENABLE] = "enable",
[PORT_SUSPEND] = "suspend",
[PORT_OVERCURRENT] = "overcurrent",
[PORT_RESET] = "reset",
[PORT_POWER] = "power",
[PORT_LOWSPEED] = "lowspeed",
[PORT_HIGHSPEED] = "highspeed",
[PORT_C_CONNECTION] = "change connection",
[PORT_C_ENABLE] = "change enable",
[PORT_C_SUSPEND] = "change suspend",
[PORT_C_OVERCURRENT] = "change overcurrent",
[PORT_C_RESET] = "change reset",
[PORT_TEST] = "test",
[PORT_INDICATOR] = "indicator",
};
if (feature < 0 || feature >= ARRAY_SIZE(name)) {
return "?";
}
return name[feature] ?: "?";
}
static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
int request, int value, int index, int length, uint8_t *data)
{
USBHubState *s = (USBHubState *)dev;
int ret;
trace_usb_hub_control(s->dev.addr, request, value, index, length);
ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
if (ret >= 0) {
return ret;
@ -295,6 +324,9 @@ static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
goto fail;
}
port = &s->ports[n];
trace_usb_hub_get_port_status(s->dev.addr, index,
port->wPortStatus,
port->wPortChange);
data[0] = port->wPortStatus;
data[1] = port->wPortStatus >> 8;
data[2] = port->wPortChange;
@ -315,6 +347,10 @@ static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
unsigned int n = index - 1;
USBHubPort *port;
USBDevice *dev;
trace_usb_hub_set_port_feature(s->dev.addr, index,
feature_name(value));
if (n >= NUM_PORTS) {
goto fail;
}
@ -345,6 +381,9 @@ static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
unsigned int n = index - 1;
USBHubPort *port;
trace_usb_hub_clear_port_feature(s->dev.addr, index,
feature_name(value));
if (n >= NUM_PORTS) {
goto fail;
}

11
trace-events
View File

@ -289,7 +289,7 @@ usb_uhci_td_nextqh(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
usb_uhci_td_async(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
usb_uhci_td_complete(uint32_t qh, uint32_t td) "qh 0x%x, td 0x%x"
# hw/usb-desc.c
# hw/usb/desc.c
usb_desc_device(int addr, int len, int ret) "dev %d query device, len %d, ret %d"
usb_desc_device_qualifier(int addr, int len, int ret) "dev %d query device qualifier, len %d, ret %d"
usb_desc_config(int addr, int index, int len, int ret) "dev %d query config %d, len %d, ret %d"
@ -301,6 +301,15 @@ usb_set_interface(int addr, int iface, int alt, int ret) "dev %d, interface %d,
usb_clear_device_feature(int addr, int feature, int ret) "dev %d, feature %d, ret %d"
usb_set_device_feature(int addr, int feature, int ret) "dev %d, feature %d, ret %d"
# hw/usb/dev-hub.c
usb_hub_reset(int addr) "dev %d"
usb_hub_control(int addr, int request, int value, int index, int length) "dev %d, req 0x%x, value %d, index %d, langth %d"
usb_hub_get_port_status(int addr, int nr, int status, int changed) "dev %d, port %d, status 0x%x, changed 0x%x"
usb_hub_set_port_feature(int addr, int nr, const char *f) "dev %d, port %d, feature %s"
usb_hub_clear_port_feature(int addr, int nr, const char *f) "dev %d, port %d, feature %s"
usb_hub_attach(int addr, int nr) "dev %d, port %d"
usb_hub_detach(int addr, int nr) "dev %d, port %d"
# hw/usb/host-linux.c
usb_host_open_started(int bus, int addr) "dev %d:%d"
usb_host_open_success(int bus, int addr) "dev %d:%d"